OLFA-Easy blade change rotary cutter. Simply release the blade by sliding a locking mechanism on the back of the handle. No more washer and no assembly. Innovative split blade cover takes the effort out of switching from right to left-hand. Anti-slip, rubberized grips on both sides of the contoured handle provide secure, comfortable handling. Cuts up to 6 layers of fabric. Includes RB45 blade. Fits RB45 blade.